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SubjectRe: [PATCH] USB CDC-Ether - Add ZTE WWAN matches before generic Ethernet
Date
On Saturday 19 May 2012, Bjørn Mork wrote:
> Andrew Bird <ajb@spheresystems.co.uk> writes:
> > Some ZTE WWAN devices have generic CDC Ether descriptors. Add those
> > into the whitelist so that we get FLAG_WWAN on the interface
>
> Are you sure none of these export QMI via the CDC Ether control
> interface? Or are they not Qualcomm devices at all?
>
> As usual, if you see a spurious "CDC: unexpected notification 01" logged
> from cdc_ether, then there is reason to examine those closer. If you
> don't see any such messages, then there isn't any QMI there.
>
>
> Bjørn

Hi Bjørn,
No these are devices that use the Icera chipset. They have cdc-acm serial
ports and firmware has implemented AT commands for (de)activating the pseudo
Ethernet and getting IP + DNS values etc. Actually applying this patch will
provide little in terms of operation except to make the interface name wwan%d
unstead of usb%d and to flag the interface such that Network Manager does not
try to bring it up via DHCP as soon as it appears, like it would with a fixed
Ethernet interface.

Good tip about the 'unexpected notification 01' I'll look out for that!

Andrew
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